Have the test cases wait for the process to be gone after 1s using
wait_process_gone rather than trying use kill -0 once after 0.5s.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Whenever we encrypt the data we generate a new random IV and append a
tlv block with the IV to the byte stream. We mark the IV with different
tags depending on whether they are for the migration data or the (TPM)
data directly. All IVs are part of the HMAC and are added to it after
the data blob.
Adjust test cases that now return larger sizes of data. A constant
checksum over the data cannot be expected anymore, thus we have to remove
the verification of the checksum over the returned state (IV changes
every time).
The size of the blobs grow by 22 bytes, 6 for the tlv header, 16 bytes
for the IV (128 bit AES key).
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Prepend tag-length-value (tlv) headers in front of all data being stored in
the byte stream following the header. This lets us uniquely identify plain
data (= TPM state), encrypted data (= encrytped TPM state), migration data
(which is wrapped plain or encrytped TPM state), and an HMAC block to
validate the plain data.
We keep support for version 1 for reading the data but convert them to
version 2 when writing them out. This way we loose backwards compatibility
(downgrading of swtpm is not possible), but it allows us to extend the state
in the future by adding addition blocks with tlv headers.
Version 1 of the encryption was prepending the hash on the plaintext data
then encrypting all of it. This method is not so good. In version 2 we now
use Encrypt-then-MAC (EtM) where we encrypt the data and then calculate an
HMAC on the encrypted data.
Files written by the swtpm didn't have a header before. Now they also get a
header. This means that the state written into files and the state retrieved
using the API (swtpm_ioctl --save) have the same format, but still differ
in so far as the API wraps the data in a tlv header for migration, which the
files written out as state would never get.
Adapt a couple of test cases show file sizes and hashes have changed now.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Check for a '#define WITH_CUSE 1' line in config.h to determine whether
the swtpm was compiled with the CUSE interface and skip the tests with
the CUSE interface if no such line can be found.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Poll for process to be gone for 1 seconds after a shutdown was requested
and it was found that the PID file had been removed.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Rather than writing to files directly and having to validate the state in
those files using TPMLIB_ValidatetState(), we now use the new
TPMLIB_SetState() call to set the TPM's state blobs. The advantage of this
call is that it doesn't overwrite state files and ends up leaving state in
files that the TPM cannot use. Instead, it validates the state immediately
when the blob is set and returns an error in case the state cannot be
accepted.
We need to adapt one test case that now gets a failure earlier than before.
Before the TPM_INIT failed, now setting the encrypted blob fails because it
cannot be decrypted and thus cannot be accepted by the TPM.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
To avoid test failures in test_ctrchannel2 due to the swtpm process
still running after it has removed the PID file, give it 0.5 seconds
to actually terminate.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Use the new --info parameter for swtpm_ioctl to get TPM specification
info from the swtpm and use this as a parameter for creating the EK
certificate.
Extend the man page.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
We quetry the swtpm for TPM specification info that goes into the
certificate for the EK.
Update the test cases that now see more capabilties being returned
by the swtpm.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Update the test case test_swtpm_cert to have its issuercert signed
by a created root CA so that we have the Authority Key Id in the cert.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Create the TPMSpecification SEQUENCE and add it to the subject
directory attributes of an EK cert.
The code generates the same ASN.1 for the Subject Directory Attributes
as the example in the EK spec has.
> openssl asn1parse -in ${cert} -strparse 603
0:d=0 hl=2 l= 30 cons: SEQUENCE
2:d=1 hl=2 l= 28 cons: SEQUENCE
4:d=2 hl=2 l= 5 prim: OBJECT :2.23.133.2.16
11:d=2 hl=2 l= 19 cons: SET
13:d=3 hl=2 l= 17 cons: SEQUENCE
15:d=4 hl=2 l= 3 prim: UTF8STRING :1.2
20:d=4 hl=2 l= 4 prim: INTEGER :41010000
26:d=4 hl=2 l= 4 prim: INTEGER :7B000000
Extend existing test case so they create the ASN.1 as well.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Loading an invalid state blobs now fails ealier since libtpms is
called to check whether it can accept the blob.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Extend the encrypted state test with a test case using a wrong key
for decrypting the state and make sure that the init fails and the
state files remain unmodified.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Implement a command for setting and querying the buffer size the
TPM implementation (libtpms) is using. The setting of the
buffersize allows to reduce the size of the buffer to a size
that the interface can support so that these two sizes match
and the TPM will not produce larger responses than what the
interface can support.
Extend swtpm_ioctl with an option to set the buffersize.
Adapt the existing tests to reflect the newly supported command.
Implement a new test for getting/setting of the buffer size.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Check whether /dev/ptmx or /dev/ptm exists and use it to open a file
descriptor on it, raise an error otherwise.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
OpenBSD uses different tools for sha1 and file size calculations,
so we wrap them in functions and check which one to call by using
uname -s.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Use uname -s to check for Linux rather than uname -o, which doesn't
seem to be supported on OpenBSD.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Rather than using the non-bash echo tool, which doesn't seem to
support -e on OpenBSD, use the bash echo tool to write the binary
code into a file and cat the file into the device. This also works
around a problem when a sequence contains \x0a, which then seems
to be the last character written to the device if bash's echo is
used. It does this correctly when writing to a file.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
The control channel of a UnixIO socket is not supported
on Cygwin, so do not present this flag. Return an error
if this command is run.
Adapt the test case.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Copy the test case that use 'swtpm chardev' to test_ctrlchannel4
and convert this test in test_ctrlchannel to use a socket. Make
test_ctrlchannel run on all platforms. test_ctrlchannel4 only
runs when WITH_CHARDEV is set in the Makefile.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Split off the CMD_SET_DATAFD into its own file. This test only works on
Linux, so we skip it on Cygwin for example. Otherwise it should be able
to run.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
To enable the test suite to for example run a mixture of 32- and
64bit executables, allow users to specify the executables to use by
setting the variables SWTPM_EXE, SWTPM_IOCTL, and SWTPM_BIOS via
command line.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Use the send1msg() ot the twisted sendmsg package since sendmsg()
is only supported in more recent versions of twisted.
Following this we also don't need to install a recent version of twisted
via pip on Travis, which runs Ubuntu 14.04.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Rather than sending two separate messages with the bare python 2
API, use the python twisted package to send the control and data
in one sendmsg() call. This avoids occasional test failures in
the ctrlchannel test case that is currently sending the data and
control part of the message in 2 steps, which can lead to the
recpient not seeing the whole message.
Add python-twisted as a build dependency to the rpm and Debian
builds and the .travis.yml.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
As objected by QEMU upstream developers to use two different sockets for
starting/using of swtpm, This commit adds support for passing unix domain
socket over control channel.
The summary of the changes include:
- Defined new control command CMD_SET_DATAFD, using this clients can send data
socket.
- set mlp.fd and mlp.flags outside of the mainloop
- updated the testcases
Signed-off-by: Amarnath Valluri <amarnath.valluri@intel.com>
Add the missing PTM_CAP_GET_CONFIG to the returned flags.
Fix the order of the flags on the way.
Fix the test cases that test for the flags.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Refactor the tests so that they all run on socket interfaces as well.
Use socket ports in the range of 65400-65499 for TPM 1.2 tests.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
To be able to run tests with either one of the interfaces, add function
for running swtpm and swtpm_ioctl commands and form the command line
parameters dependent on the type of interface being passed. We rely on
environment variables to provide the specific parameters that are needed
to run the program with the appropriate parameters.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Change the startup behavior with respect to requiring an INIT command
via control channel. We change this for the socket and chardev
interfaces so that the behavior now is the same as that of the CUSE
interface.
Introduce the --flag not-need-init command line option for the socket
and chardev interfaces to allow the old behavior using this option.
Adapt some of the test cases and swtpm_setup.sh.in that now need this
command line flag.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Implement allow-set-locality for CUSE TPM and extend the existing
locality test case with commands that try to write the SetLocality
comamnd to the device.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
